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CN-121974488-A - Nitrocotton production wastewater anaerobic treatment device with cotton chip recovery function

CN121974488ACN 121974488 ACN121974488 ACN 121974488ACN-121974488-A

Abstract

The invention discloses a nitrocotton production wastewater anaerobic treatment device with a cotton chip recovery function, which belongs to the technical field of chemical production, cotton chips are rotationally separated through a cotton chip collecting cylinder, a flexible brush strip rotates to scrape the surface of the cylinder wall of the cotton chip collecting cylinder, and the flexible brush strip is matched with the cotton chip collecting cylinder to synchronously rotate, so that residual cotton chips attached to the outside of the cotton chip collecting cylinder can be cleaned, a triangular ejector block synchronously rotates, when the inclined surface of the ejector block contacts with the triangular inclined surface of a stop block in a supporting assembly, the ejector block pushes the stop block to slide upwards along a chute of a fixed seat, after the ejector block rotates to the stop block position, a first spring returns to drive the stop block to rebound downwards, and a knocking roller performs high-frequency tapping on the top of the cotton chip collecting cylinder under the double effects of rotation of the cotton chip collecting cylinder and vibration of a transverse plate, so that the cotton chips attached to the inner side of the cylinder wall of the cotton chip collecting cylinder can be vibrated along with a spiral guide plate to move towards a movable disc, and meanwhile, the residual impurities in a cotton chip isolation hole can be further cleaned, and the separation effect and the cotton chip recovery efficiency are improved.

Inventors

  • MA JIANHUA
  • ZHANG YAOHUI

Assignees

  • 湖北雪飞化工有限公司

Dates

Publication Date
20260505
Application Date
20260302

Claims (10)

  1. 1. The anaerobic treatment device for nitrocotton production wastewater with a cotton chip recovery function comprises an anaerobic reactor (1), and is characterized in that a supporting frame (2) is arranged outside the anaerobic reactor (1), two sides on the supporting frame (2) are respectively fixed with a supporting side baffle component (3), a cotton chip recovery component (4) is penetrated and rotated between the two supporting side baffle components (3), one end of the cotton chip recovery component (4) penetrates through the supporting side baffle component (3) and is communicated with a material injection component (5), a supporting bracket box (6) and a protective top cover (7) are fixedly connected between the two supporting side baffle components (3), the supporting bracket box (6) is fixed with the bottom of the protective top cover (7), the cotton chip recovery component (4) is positioned inside the supporting bracket box (6) and the protective top cover (7), a wastewater discharge valve (8) is installed at the bottom of the supporting bracket box (6), the bottom of the wastewater discharge valve (8) is connected with a port of the anaerobic reactor (1), one side of the supporting side baffle component (3) is fixedly connected with a supporting bracket box (6) and a scraping brush cleaning component (12) is connected with a driving component (12) in a rotating mode, and scrape the outside of brush cleaning subassembly (12) and cotton bits recovery unit (4) overlap joint, the both sides at top are fixed with supporting component (13) respectively in protective top cap (7), fixedly connected with diaphragm (14) between two supporting component (13), run through in diaphragm (14) and slide have a plurality of to strike subassembly (15).
  2. 2. The anaerobic treatment device for nitrocotton production wastewater with cotton waste recovery function according to claim 1, wherein the supporting side baffle assembly (3) comprises a supporting baffle plate (301), the supporting baffle plate (301) is fixed on the supporting frame (2), an arc-shaped groove (302) is formed in the supporting baffle plate (301), a plurality of limiting supporting rollers (303) are rotationally connected in the arc-shaped groove (302), and the cotton waste recovery assembly (4) is rotationally connected with the middle of the supporting baffle plate (301) through the plurality of limiting supporting rollers (303).
  3. 3. The anaerobic treatment device for nitrocotton production wastewater with cotton waste recovery function according to claim 2, wherein the cotton waste recovery assembly (4) comprises a cotton waste collection cylinder (401), the cotton waste collection cylinder (401) penetrates through two support baffles (301) and is externally overlapped with a plurality of limit support rollers (303), a plurality of cotton waste isolation holes (402) are formed in the cotton waste collection cylinder (401), and three spiral guide plates (403) are fixed on the inner wall of the cotton waste collection cylinder (401).
  4. 4. The anaerobic treatment device for nitrocotton production wastewater with cotton waste recovery function according to claim 3, wherein a gear ring (404) is fixed on one side of the outside of the cotton waste collection cylinder (401), the gear ring (404) is in meshed connection with the driving assembly (11), a plurality of groups of ejector blocks (405) are fixed on two sides of the outer wall of the cotton waste collection cylinder (401), the number of each group of ejector blocks (405) is two, and the ejector blocks (405) are of triangular design.
  5. 5. The anaerobic treatment device for nitrocotton production wastewater with cotton waste recovery function according to claim 2, wherein the cotton waste collection cylinder (401) penetrates through one side of the supporting baffle plate (301) to be movably connected with the movable disc (9), a cotton waste discharge valve (10) is installed at the edge of the movable disc (9), a control panel (16) is installed on the supporting frame (2), one end of the cotton waste discharge valve (10) is fixedly connected with an extrusion conveying assembly (17), the extrusion conveying assembly (17) comprises a conveying cylinder (171), one end of the conveying cylinder (171) is fixedly connected with the cotton waste discharge valve (10) and is communicated with the inside, a distance-changing screw rod (172) is rotatably connected inside the conveying cylinder (171) through a shaft sleeve, the screw distance in the distance-changing screw rod (172) is gradually increased from left to right, a filter box (173) is fixedly penetrated at the bottom of the conveying cylinder (171), a water leakage hole is formed in the filter box (173), one end of the conveying cylinder (171) far away from the cotton waste discharge valve (10) is fixedly connected with one end of the conveying cylinder (171), two transmission shafts (175) are fixedly connected with one end of the transmission shafts (175) in a sleeved mode, the other end of the extension shaft (176) is fixed with one end of the scraping and cleaning assembly (12), a return pipe (177) is communicated with the bottom of the filter box (173), and the other end of the return pipe (177) is communicated with the anaerobic reactor (1).
  6. 6. The anaerobic nitrocotton production wastewater treatment device with cotton waste recovery function according to claim 4, wherein the driving assembly (11) comprises a motor (111), the motor (111) is arranged on one side of one supporting baffle plate (301), a driving gear (112) and a driving wheel (113) are fixed on an output shaft of the motor (111), the driving gear (112) is meshed with the gear ring (404), a belt (114) is sleeved outside the driving wheel (113), and the driving wheel (113) is in transmission connection with the two scraping and cleaning assemblies (12) through the belt (114).
  7. 7. The anaerobic treatment device for nitrocotton production wastewater with cotton waste recovery function according to claim 6, wherein the scraping and brushing cleaning assembly (12) comprises a connecting rod (121), the outside of the connecting rod (121) is connected in a supporting bracket box (6) through bearing penetration rotation, a plurality of flexible brush strips (122) are arranged at positions, located inside the supporting bracket box (6), of the outside of the connecting rod (121), the flexible brush strips (122) are lapped with the outer wall of a cotton waste collecting cylinder (401), one end of the connecting rod (121) penetrates through a supporting baffle plate (301) and is fixedly provided with a driven wheel (123), and the driving wheel (113) is connected with the driven wheels (123) at the ends of the two connecting rods (121) through a belt (114).
  8. 8. The anaerobic treatment device for nitrocotton production wastewater with cotton waste recycling function according to claim 4, wherein the supporting component (13) comprises a fixed seat (131), the fixed seat (131) is fixed at the top of the inner wall of the protective top cover (7), a sliding groove (132) is formed in the fixed seat (131), a stop block (133) is connected in a sliding manner in the sliding groove (132), the stop block (133) penetrates through the bottom of the fixed seat (131), the part of the stop block (133) penetrating through the fixed seat (131) is in a triangular design, the inclined surface position corresponds to the inclined surface part of the top block (405), a first spring (134) is fixed at the top of the stop block (133), the top end of the first spring (134) is fixed with the top of the inner wall of the sliding groove (132), and the transverse plate (14) is fixed between the two stop blocks (133).
  9. 9. The anaerobic treatment device for nitrocotton production wastewater with cotton waste recycling function according to claim 8, wherein the knocking assembly (15) comprises a plurality of sliding frames (151), the sliding frames (151) are of an inverted U-shaped design and penetrate through and slide in the transverse plates (14), knocking rollers (152) are rotatably connected between openings at the bottoms of the sliding frames (151), the outer parts of the knocking rollers (152) are overlapped with the tops of the cotton waste collection barrels (401), and two second springs (153) are fixed between the tops of the inner walls of the sliding frames (151) and the transverse plates (14).
  10. 10. The anaerobic treatment device for nitrocotton production wastewater with cotton waste recovery function according to claim 3, wherein the material injection assembly (5) comprises a rotary joint (501), the rotary joint (501) is clamped at one end of the cotton waste collection cylinder (401), a wastewater injection pipe (502) is sleeved inside the rotary joint (501), a valve (503) is arranged outside the wastewater injection pipe (502), a support plate (504) is fixed at the lower position of the wastewater injection pipe, and the support plate (504) is fixed at one side of the support frame (2).

Description

Nitrocotton production wastewater anaerobic treatment device with cotton chip recovery function Technical Field The invention relates to the technical field of chemical production, in particular to a nitrocotton production wastewater anaerobic treatment device with a cotton chip recovery function. Background The nitrocotton is used as a key raw material in the fields of energetic materials, coatings, adhesives and the like, the production process of the nitrocotton needs multiple procedures of nitrification, washing, drying and the like, a large amount of high-concentration organic wastewater is generated, the wastewater has the characteristics of high COD concentration, high nitrogen content, poor biodegradability and the like, meanwhile, due to the falling of cotton fibers in the drying procedure, a large amount of cotton scraps are entrained in the wastewater, and the main component of the wastewater is cellulose which is not completely nitrified. At present, anaerobic treatment of nitrocotton production wastewater is mainly carried out by adopting an anaerobic reactor, cotton scraps in the wastewater are long fibrous substances, the cotton scraps enter the anaerobic reactor and are easy to wind on the surfaces of a water distributor, a three-phase separator and a filler, so that water distribution is uneven, the dead volume of a reaction zone is increased, the reactor is blocked when serious, meanwhile, the cotton scraps are accumulated for a long time to cover anaerobic bacteria biomembrane, contact between organic substrates in the wastewater and microorganisms is hindered, and the cotton scraps are easy to adsorb nitrate, nitrite and other nitrification byproducts in the wastewater, so that the activity of methanogenic bacteria is further inhibited, the COD removal rate is reduced, the water inlet requirement of subsequent aerobic treatment cannot be met, frequent shutdown cleaning is needed, and continuous and stable operation of a treatment system is seriously influenced. The pretreatment units such as the grating and the sedimentation tank are additionally arranged before anaerobic treatment, the traditional grating can only remove cotton scraps with large particle size, fine cotton scraps easily enter the anaerobic reactor along with water flow, and cotton scraps accumulated on the grating for a long time can also cause blocking conditions, the sedimentation tank relies on gravity sedimentation, and the cotton scraps are small in density, easy to float and low in sedimentation efficiency, so that frequent shutdown and cleaning are required, the treatment efficiency is obviously reduced, and recovery of the cotton scraps and wastewater treatment work are not facilitated. Based on the above, the invention designs a nitrocotton production wastewater anaerobic treatment device with a cotton chip recovery function, so as to solve the problems. Disclosure of Invention The invention aims to provide a nitrocotton production wastewater anaerobic treatment device with a cotton chip recovery function, which aims to solve the problems that the traditional grating provided in the background art only can remove cotton chips with large particle sizes, fine cotton chips easily enter an anaerobic reactor along with water flow, cotton chips accumulated on the grating for a long time can cause blocking, a sedimentation tank is dependent on gravity sedimentation, and the cotton chips are low in density, easy to float and low in sedimentation efficiency, so that frequent shutdown and cleaning are required. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides a nitrocotton waste water anaerobic treatment device with cotton bits are retrieved function, includes anaerobic reactor, the anaerobic reactor outside is equipped with the support frame, both sides on the support frame are fixed with respectively and support the side fender subassembly, run through between two support side fender subassemblies and rotate and have cotton bits to retrieve the subassembly, the one end of cotton bits is run through and is supported the side fender subassembly and put through and install annotate the material subassembly, and fixedly connected with support the box and protect the top cap between two support side fender subassemblies, support the bottom of box and protect the top cap and fix mutually, cotton bits are retrieved the subassembly and are located and support the box and protect the top cap inside, the waste water discharge valve is installed to the bottom of supporting the box, the bottom of waste water discharge valve is connected with anaerobic reactor's port, one side of one of them supports the side fender subassembly is fixed with drive assembly, the transmission is connected with two and scrapes brush cleaning subassembly in the drive assembly, scrape brush cleaning subassembly run through and rotate and connect in supporting the box insid